Invention Application
WO2013111063A1 CAPACITIVE MICRO-MACHINED TRANSDUCER AND METHOD OF MANUFACTURING THE SAME
审中-公开
电容式微机械传动器及其制造方法
- Patent Title: CAPACITIVE MICRO-MACHINED TRANSDUCER AND METHOD OF MANUFACTURING THE SAME
- Patent Title (中): 电容式微机械传动器及其制造方法
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Application No.: PCT/IB2013/050572Application Date: 2013-01-23
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Publication No.: WO2013111063A1Publication Date: 2013-08-01
- Inventor: DIRKSEN, Peter , MAUCZOK, Ruediger , KARAKAYA, Koray , KLOOTWIJK, Johan Hendrik , MARCELIS, Bout , MULDER, Marcel
- Applicant: KONINKLIJKE PHILIPS N.V.
- Applicant Address: High Tech Campus 5 NL-5656 AE Eindhoven NL
- Assignee: KONINKLIJKE PHILIPS N.V.
- Current Assignee: KONINKLIJKE PHILIPS N.V.
- Current Assignee Address: High Tech Campus 5 NL-5656 AE Eindhoven NL
- Agency: VAN VELZEN, Maaike, M. et al.
- Priority: US61/591,308 20120127
- Main IPC: B06B1/02
- IPC: B06B1/02
Abstract:
The present invention relates to a method of manufacturing a capacitive micro- machined transducer (100), in particular a CMUT, the method comprising depositing a first electrode layer (10) on a substrate (1), depositing a first dielectric film (20) on the first electrode layer (10), depositing a sacrificial layer (30) on the first dielectric film (20), the sacrificial layer (30) being removable for forming a cavity (35) of the transducer, depositing a second dielectric film (40) on the sacrificial layer (30), depositing a second electrode layer (50) on the second dielectric film (40), and patterning at least one of the deposited layers and films (10, 20, 30, 40, 50), wherein the depositing steps are performed by Atomic Layer Deposition. The present invention further relates to a capacitive micro-machined transducer (100), in particular a CMUT, manufactured by such method.
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